该设计主要是通过STM32F10实现一个USB host的功能，USB host部分采用CH376S芯片来实现。本程序能够实现连接U盘读写操作的功能。-The design is mainly through STM32F10 a USB host function, the USB host part to adopt CH376S chip. This procedure can achieve the function of connecting U disk read and write